A vocal opponent of marriage rights for same-sex couples on Sunday lost the second round of Costa Rica’s presidential election.Official results indicate Fabricio Alvarado lost to Carlos Alvarado by a 39-61 percent margin. Fabricio Alvarado — a Pentecostal minister, singer and former journalist who is a member of the National Restauration Party — and Carlos Alvarado of the leftist Citizen’s Action Party won the election’s first round on Feb. 4. Fabricio Alvarado and Carlos Alvarado, who are not related, faced off on Sunday because neither of them received at least 40 percent of the vote in the election’s first round.